Proposal code

w314

Proposal title

Regular Monitoring of 1928+738

The

Investigators and their

Affiliations

P.I. D. W. Murphy JPL, USA
J. E. Conway, A. Polatidis Onsala Space Observatory, Sweden
R. A. Preston, D. L. Jones, D. L. Meier JPL, USA
S. J. Tingay ATNF, Australia
H. Hirabayashi, Y. Murata ISAS, Japan
H. Kobayashi, Japan NAO, Japan

Proposal Abstract

One of the most valuable results of the VSOP mission will be an uninterrupted series of images for a few sources over the mission lifetime. Such continuous monitoring is only possible for a small region of the sky. We propose to continue our 5 GHz monitoring campaign on the superluminal quasar 1928+738. We hope to confirm or reject the hypothesis that the observed wiggle in the jet is caused by the orbital motion of a massive binary black hole system. Analysis of our existing data show that this source does indeed show evidence for jet oscillations. However, more data is needed to confirm this tentative but nevertheless intriguing result.

The full Cover Sheets (compressed post-script, typically 50kbytes) can be retrieved. Note that many proposals were reduced in extent by the Scientific Review Committee (e.g. by reducing the number of experiments), however the Cover Sheets contain the full proposal as submitted. Also note that AO3 proposals were submitted in October 1999, and information such as affiliations and contact details has changed for some proposers since that time. The Cover Sheets (and the details on this page, which were derived from the Cover Sheets) may therefore have changed.